tucker



(No Model.) 6 Sheets-Sheet 1.

. DqTUOKER. WEB PRINTING AND DELIVERY MECHANISM.

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Patented July 26, 1887.

WITNESSES;

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- s. D. TUCKER.

WEB PRINTING AND DELIVERY MECHANISM.

INVENTOR.

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Patented July 26, 1887.

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(No Modl.) 6 SheetsSheet 3.

' s. DQTUCKER. V WEB PRINTING AND DELIVERY MECHANISM. No. 367,123.Patent-ed July 26,1887;

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WEB PRINTING AND DELIVERY MECHANISM. N0.-3-67,123.- Patented July'Z6,1887.

\NITNESSES: lNvENToR,

N. PETERS. Pholo-Lilhographon Wnhinglnn, n. a

UNITED STATES PATENT OFFI E.

STEPHEN.D. TUCKER, OF NEWV YORK, N. Y.

WEB PRINTING AND DELIVERY MECHANISM."

SPECIFICATION forming part of'Letters Patent No. 367,123, dated July 26,1887.

Application filed April 27, 1882. Serial No. 59,747. (No model.)Patented in England October 3, 1831, No. 4,285.

To all whom it may concern.-

Be it known that I, STEPHEN D. TUCKER, a citizen of the United States,residing in the city of New York, county of New York, 'State of NewYork, have invented certain new and useful Improvements in Web Printingand Delivery Mechanism,(the said improvements being embraced in BritishLetters Patent N o. 4, 285, granted to William Conquest, October 3,1881,) fully described and represented in thefollowing specification andthe accompanying drawings, forming a part of the same.

The present invention relates to that class of web-printing machines inwhich the forms for printing both sides of the web are carried upon asingle cylinder, andin which the web alter being printed upon one sideis turned over and represented to the same forms to be printed upon itsopposite side, the travel of the web between the printing of itsopposite sides being so distanced that when the web is perfected theprinted pages for one side of the sheet upon one side of the web willregister with the pages for the opposite side of the sheet upon theopposite side of the web, and

vice versa.

It will readily be seen that the sheets severed from a web perfected inthis manner will not pass to the delivery mechanism in a uni formposition, but that one half of said sheets will have their outside pagesuppermost,while the other half will have-their inside pages uppermost;and it will also be seen that, if the columns of the forms lielengthwise of the formcylinder, (which is usually the casein this class'of machines,) in addition to this the heads of impression -cylindersand a web turner arranged to co-operate therewith to print both sides ofa web from the same forms, of a mechanism for severing the web intosheets and a collecting mechanism arranged to associate the sheets intolots, each of which lots shall contain sheets upon which the pages areprinted in like order, all substantially as hereinafter described.

The invention also includes the combination, with the type or formcylinders carrying forms for printing both sides of the web, one-half ofsaid forms being placed ateach end of the cylinder, ofimpression-cylinders and web-turning mechanism arranged to co-operatetherewith to print both sides of the web from said forms, and mechanismsfor splitting the web longitudinally into sections and for severing saidsections into sheets, all substantially as hereinafter described.

. The invention also embraces various other details of construction andcombinations of parts, all of which will be hereinafter fully de .isturned over between the printing of its op- Fig. 6 is a diagrammaticsection posite sides. illustrating the manner in which the singlewidthprinting mechanism is operated to produce two-page or half-sheet papersor supplements. Fig. 7 is a like view illustrating the manner in whichthe double-width printing mechanism is operated to produce four-pagepapers or supplements. Fig. 8 is a view of a single-width web, showingthe order in which the pages will occur when it is printed for afour-page paper. Fig. 9 is a similar view showing the order in which thepages will occur when said web is printed for a two-page or half sheetpaper or supplement. Fig. 10 is a view of a double-width web, showingthe order in which the pages will occur when it is printed for aneight-page paper; and Fig. 11 is a simi lar view showing the order inwhich the pages will occur upon said web when it is printed for afour-page paper or supplement.

The printing mechanism illustrated in the Fig. 2 is a longitudinalaccompanying drawings isa double one-that is to say, is adapted tooperate simultaneously upon two webs of paper. This feature is notmaterial, however, as the invention is equally applicable, as willhereinafter fully appear, to a printing mechanism which operates upononly a single web.

The construction of the mechanism in connection with its operation uponone of the webs will be first described, after which those parts whichare added to eapacitate it to operate upon the second web will bepointed out, and, as far as may be necessary, described.

The type or form cylinder 5, which is of the usual construction and of asize sufficient to permit ordinary type to be securely fastened to itsperiphery, is mounted in bearings in a suitable frame, and, as hereshown, is provided with four forms of type, 1 2 3 4, which forconvenience it will be assumed are of the proper size for printing thefour pages of an ordinary folio or four-page newspaper. These forms are,as is usual when printing from type, arranged so that their columns ofmatter lie longitudinally of the cylinder, and are, as shown, arrangedin pairs located diametrically opposite each other upon the cylinder,each pair occupying one-fourth ofits circumference. The spaces upon thecylinder between the groups of forms are occupied by ink'distributingtables or surfaces (3, to which the ink is supplied from an ordinaryink-fountain, (not shown,) and from which it is taken and applied to theforms by ordinary inking-rolls, 20, as in the well-known Hoetype-revolving press.

As has just been explained, the forms do not cover the entire surface ofthe type or form cylinder, and this is due to the fact that in order tosuccessfully secure ordinary type to a cylinder it is necessary thatsuch cylinder should be of so large a size that the forms for printingan ordinary newspaper will not be sufficient to cover its wholecircumference. It therefore becomes necessary in this class of machines,in order to print the whole surface of the web, that each form shouldact more than once upon the web at each revolution of the form-cylinder.This is accomplished by providing a plurality of impression-cylindersand a register roll or rolls for each side of the web, the number ofsuch impressioncylinders and register rolls being determined by theproportion of the surface of the fornreylin der that is occupied by theforms. In the present case the forms, as just stated, occupy one-half ofthe circumference of the form-cylinder, and there are therefore providedtwo impression-eylinders and one register-roll for each side of the web.

The web to be printed is led from a roll, 7, and after passing beneath aguide-roll, 8, passes around the impression cylinder 9, thence outwardaround the register-roll 10, and thence inward around the secondimpressioneylinder, 11. In passing the cylinder 9 the web will receiveimpressions from the forms 4 and 1, and the part bearing theseimpressions will then pass around the roll 1(l,while the forms 4 and 1will pass onward and give a second impression to that portion of the webpassing over the cylinder 11. The roll 10 is placed at such a distancefrom the type-cylinder that the advance end of the impression given byform 4 upon cylinder 9 will arrive upon cylinder 11 just in time toexactly join with the rear edge of the impression given by form 1 uponthat cylinder. From this it will be seen that this pair of forms makestwo impressions upon the web in succession, the second impression beingjust in advance of the first. Following the rear edge of the impressionmade by form 1 upon cylinder 9 will be a blank space equal to the spaceupon the type-cylinder between forms 1 and 3, which space is just equalto the length of a pair of forms. At the end of this space the forms 3and 2 will make impressions upon the web upon cylinder 9, and, passingto cylinder 11, will make second impressions just in advance of thefirst, which second impressions will just fill the blank space referredto. This operation being repeated at each revolution of thetype-cylinder, one side of the web will be wholly covered, theimpressions of each pair of forms occurring twice in successionas4 and1, 4 and 1, 3 and 2, 3 and 2, 4 and 1, &c.as shown in Fig. 8. Afterpassing impressioncylinder 11., the web, now printed upon one side, isconducted around guide-rolls 12, 13, 11, and 15 and a web-turncr ontothe third impression-cylinder, 16.

The web-turner, as shown, is composed of a leadingroll, 1S), and fixedbars 17 18, arranged at right angles to each other and obliquely acrossthe path of the web. (See Fig. 5.) In order to turn over or reverse theweb, so as to present its unprinted side to the type, it is led underand around bar 17, thence laterally and downward around roll 19, andthence inward and upward. around bar 18, thus bringing its printed sideuppermost, as shown in Fig. 5, and next to the impression-cylinder, andconsequently its blank side to the type.

The roll 14- is journaled in the ends of arms 23, extending from therock'shaft 24, which is provided with a worm-gear, 25, and controlled bya worm, 26, so as to effect a nice adjustment of the roll 14, to vary toany desired eX tent the distance traveled by the web between thecylinders 11 and 16 in order to secure the proper registrations betweenthe impressions upon its opposite sides. After passing cylinder 16 theweb passes outward around the register-r0112], and thence returns inwardand passes around cylinder 22. The operation of the forms upon thetype-cylinder, in connection with impressioncylinders 16 and 22, toprint the side of the web now presented, is exactly the same as thatalready described in connection with cylinders 9 and 11 in printing thefirst side of the web, and therefore needs no specific description.

The distance traveled by the web between the cylinders 11 and 16 is sore ulated by the position of the roll 11 that the impressions IIC madeby the forms 3 and2 upon the second side of the web will be oppositethose made by the forms 4 andl upon the firstside, and vice versa, andthe forms4 and 1 are placed upon the cylinder with their columns headedin the opposite direction to that of the columns'of the forms 3 and 2,(see Fig. 8,) sothat after the web is turn ed over the columns of theregistering impressions upon its opposite sides will be headed in thesame direction.

In printing the web -by a mechanism such asjust described it will beobserved that no one of theimpressicucylinders is continuously incontact with the forms, and, that there are times when at least three,and if they are mounted in a slightly different relation to each otherfrom that shown, even all four, of theimpression-cylinders will be outof contact with the forms. This intermittent action of the printingdevices has been found to cause such an irregular feeding of the web,when, as has heretofore been customary, theprinting mechanism has beendepended upon for that purpose, that it is impossible to secure accurateregistration between the different impressions. To cure this defect andto give a positive and uniform feed to the web, the rolls 10 and 21 areprovided with coacting forwarding-rolls 27 and 28, which are providedwith yielding peripheries, and preferably so placed as to bear upon themargins of the web. The-shafts of the rolls 27 and 28 are supported inslidingjour- 'nal-boxes, which are pressed by springs con trolled byset-screws, so that any desired degree of pressure on the web may beobtained. The roll 21 is positively driven from the inipression-cylinder22 thropgh intermediates 31 and 32, and the roll 10 from thedrivingshaft through intermediates 29 and 30. The forwarding-rolls 27and 28 may be geared to the rolls 10 and 21, or not, as may be founddesirable. The feeding devices just described are not, how ever, hereinclaimed, as they are theinvention of another. I

After receiving its final impression upon the cylinder 22, the webpasses between the cutting cylinders 33 and 34, by which it is partiallysevered upon the lines 2 z, (see Fig. 8,) and into the bite of the twoseries of tapes 35 and 36, which are accelerated in the usual manner topart the sheets from the web. The upper set, 35, of these tapes passaround pulleys 37, over pulleys 38, under pulleys 39, over pulleys 40,thence downward inside of pulleys 41 and around roll 42, returning overpulleys 43. The

under set,36,pass around pulleys 44, over pulleys 38, thence around thegathering or collecting cylinder45 and over pulleys 40, thence downwardinside of pulleys 46, outside of pulleys 47 and roll48,andinsideof 101149, returning around pulleys 50 and roll 51. Co-operating with thetapes 85 and 36 are two sets of supplemental tapes, 52 and 53. The set52 pass around pulleys 51 and downward around pulleys 55,returningoutside of roll 56. The set 53 pass around pulleys 47 and roll 48, aboveroll 49,

e and around roll 57, returning inside of pulleys 55 and outside of roll56'. The sheets, after being parted by the tapes 35 and 36, passdownward around pulleys 38, and are by the fixed guides 58 conductedonto the gatheringoylinder 45, which operates in the well-knownmanner toassociate the sheets in pairs. \Vhen a pair of sheets have beenassociated, they are guided off the cylinder by the switches 59, whichare operated at every second revolution of the cylinder by the cam 60and its connections inthe usual manner. The pair of sheets thus thrownoff the cylinder will pass over the pulleys 40 and downward between thepulleys 41 and 46, when they will be deflected by the switches 61, so asto pass between pulleys 46 and 47 and into the bite of the tapes 36 and53, by which they will be carrieddownward until they issue from betweenrolls 49 and 57 in front of the fly, by which they will be flown in theusual manner. hen the next pair of sheets pass from the cylinder 45, theswitch 61 will have been shifted, so that they will be guided betweenpulleys 41 and 54 and issue from between roll 42 and pulleys 54 and passdownward with tapes 52 in front of the upper fly, to be flown in likemanner. The parts will be so timed that each pair of sheets associatedby the cylpages 4 1 upon theirupper sides will be asso- I ciated to formone pair, those having pages 3 2 to form the next pair, and thosehavingpages 4 1 to form the third pair, 810. From this it will result that asthe alternate pairs go to different flies all the sheets delivered byeach fly will have the same side uppermost, and the heads of'the columnswill all be at the same side of the pile.

The type-cylinder in machines of the class just described is not alwaysmade of such a size that the forms cover one-half of its circumference.The proportion of the circumference of the cylinder occupied by theforms will depend upon the number and size of the forms, and the numberof the impression-cylinders and register-rolls will be governed by theproportion of the circumference of the cylinder covered by the forms;but the gathering-cylinder will be operated in all cases so v that thesheets having their columns headed in the same direction will beassociated and sent to the same fly. It is the attainment of thisdesirable result that makes the hereindescribed delivery apparatusparticularly applicable to a printing mechanism of this class.

The shaft of the switch 61 is provided with an arm, 62, to which isconnected the rod 63, the lower end of which engages with a cam ofsuitable form upon the transverse shaft 64, by which the switch isoperated at the proper times. The shaft 64 is driven through bevelgears66 and 67 from the longitudinal shaft68, which receives its motion fromthe drivingshaft through worm and wornrgear 70 and 71. Thesh aft 64 isalso provided with cams, which, through suitable connections, as shownin Fig.

IFO

IIO

1, operate the flies in the usual manner. The type and impressioncylinders are driven by connecting-gears in the usual manner, motionbeing communicated to them through gear 29 from gear (39 upon thedrivingshaft.

The various sets of tapes, as well as the galhering-cylinder, are drivenby suitable connecting-gears, motion being communicated to them from thecutting-cylinders through the train of intermediates 65, thecuttingcylinders themselves being driven from impressioncylinders 22through intermediates 31.

In order to double the capacity of the machine, it may, as shown in thepresent case, be provided with a second set of impressioncylinders anddelivery apparatus located upon the opposite side of the type-cylinder.These mechanisms are exact duplicates, both as to construction andoperation, of those already described, except that they are locateddifferently with relation to the type-cylinder. The roll 72, from whichthe second web is led, and the first pair of impression-cylindcrs andregister-roll 73, 71, and are located at the top instead of at thebottom of the machine, and the second pair of impressioncylinders andregister-roll 75, 76, and 86, web-turners 77, 78, and 79,cutting-cylinders 80 and 81, tapes 82 and 83, and gathering-cylinder Siare correspondingly reversed in position.

In the use of all web-printing machines, and particularly of those ofthe character herein shown, considerable delayhas been occasioned by thedifficulty experienced in threading or passing the leading end of theweb through the machine. To facilitate the threading, these machineshave been provided with tapes which followed the course of the webthrough the machine, and were arranged to bear only upon the margins ofthe web, so as not to interfere with the printing. -While tapes soarranged operated satisfactorily in threading the machine, it was foundin practice that they caused the web to wrinkle more or less, and thatconsequently it was very undesirable to have them in contact with theweb while the printing was in progress. This difficulty is avoided inthe present invention by placing the threading tape or tapes outside themargins of the web, so that while the printing is in progress the tapeor tapes and the web will be entirely disconnected. For this purpose themachine is provided with the tape 87, which passes around guideroll 8just outside the edge of the web, at one side of the machine, (see Figs.2 and 3,) follows the course of the web through the first printingmechanism and to the web-turner, then around the web-turner, by which itis transferred to the opposite side of the machine, (see Fig. 5,) thenwith the web through the second printing mechanism and into the bite ofthe tapes 35 and 36. From this point it passes around rolls 88, S9, 90,and 91, and again around roll '8, but on the opposite side of themachine from that at which it entered. From this point it again followsthe course of the web through the first printing will be printed asshown in Fig. 10.

mechanism to the turner, then again around the turner, by which it istransferred back to the side of the machine from which it started, afterwhich it passes again through the second printing mechanism and aroundthe guiderolls 88, &c., back to the point of startin Vhen the leadingend of the web is to be conducted through the maehine,a stout thread,92, is made fast to the tape at one side, and is then passed in and outacross the end of the web in a series of stitches and made fast to thetape at the other side, as shown in Fig. 3. The machine being thenstarted slowly, the end of the web will be carried forward by the tapeand introduced through the entire printing mechanism. \Vhen the end ofthe web has been carried into the bite of the tapes 35 and 36, thethreading is complete and the thread 92 is removed or detached from thetape at both sides of the web.

By means of the tape arranged as just described, it will readily be seenthat the web can be led through the machine as desired, and yet the tapebe entirely free from the web during the printing, so that all wrinklingis prevented.

XVhen tapes are used which press upon or grasp the margins of the web,it is necessary to employ two sets, one for each surface; but by thepresent system only one tape or pair of tapes is or are necessary, andthus one-half the tapes and a portion of the rolls for guiding them aredispensed with.

Then a web-turner is used so that the tape will be crossed, as in thepresent case, a single tape only is necessary, as has been shown; butwhere a webturner is not usedit will ofcourse be necessary to employ twotapes, one for each side of the machine.

A tape, 93, corresponding to the tape 87 and passing around rolls 98,99, 100,and 101, is employed in the duplicate printing mechanism at therightofthe type-cylinder, as shown in Figs. 6 and 7.

W'hen it is desired to produce only folio or four-page papers, thevarious cylinders, rolls, &c., of the mechanism just described will beof a length suitable for operating upon a single'width web, as shown inFig. 3; but if it is desired to capacitate the machine to prod ueequarto or eight-page papers the parts will be made of double suchlength, so as to be capable of operating upon a double-width web, asshown in Fig. 4-. 1n thelatter case the forms will be placed upon thetype-cylinders with the heads of the columns lying together at thecenter, one group of forms containing matter for pages 8 l and 5 l, andthe other group matter for pages 6 3 and 7 2, so that the web The webwill bescvered upon the lines 00 a7, and the corresponding pairs ofsheets associated and delivered in the manner already described.

Vhen it is desired to produce two-page papers or supplements on asingle-width machine,it may be done by the arrangement shown in Fig. 6.

The type-cylinder, instead of carrying four forms, will of course carrytwo, and

and 11, where it will receive two impressions from each of the two formsupon the type-cylinder, which impressions will be separated by blankspaces equal to the width of the forms removed. The web will then beturned and rec e1ve the same impressions upon its opposite side whilepassing around cylinders 16 and 22,

' page 6 falling opposite to page 5, and vice versa.

After this it will be led over adjustable guiderolls 94 and 95 andaround cylinders 73 and 74, where it will again receive thesameimpressions upon the same side. The rolls 94 and 95 are, however, soadjusted that the web in passing over them will travel such a distancethat the impressions received upon cylinders 73 and 74 will cover theblank space between the impressions received upon cylinders 16 and22',so that one side of the web will now be entirely printed,theimpressions occurringin the ordershown in Fig. 9 that is to say,there will be four pages 5, followed by four pages 6,&c. After passingcylinder 74, the Web is turned and passes around cylinders 75 and 76,where the printing of the first side is completed by filling in theblank spaces left in passing cylinders 9 and 11. 1 The web now passesbetween the cutting-cylinders 80 and 81, which, in addition to theseveringblade 96, are supplied with a perforator, 97, so

.that the web will be severed upon the linesyg and perforated upon thelines o '0.

After this the sheets will be associated in pairs and deliv-- ered tothe flies in the manner already set forth.

Thesheets in this case will each contain two supplements, which can, byreasonof the lines of perforations, be readily torn apart by hand whendesired. In threading the machine in this case the end of the web willbe fastened to the tape 87, by which it will be led forward un-' til ithas passed around cylinder 22, when it will be detached from the tape 87and carried over rolls 94 and 95 to tape 93, to which it will besecured, and which will conduct it through the second printing mechanismto the bite of the tapes 82 and 83.

The-operation of the machine in producing folio or four-page papers froma single-width web has already been explained. If, however, it isdesired to produce four-pagepapers or supplements from a double-widthweb,it may be done by arranging and operating the double-' width machinein the manner illustrated in Fig. 7. V J

The forms for printing the four pages will be placed upon thetype-cylinder in a single group, and a dummy, 102, will be placedopposite to properly balance the cylinder. The forms for printing thefirst and fourth pages of the paper or supplementor, in other words, theforms for printing one side of the sheetwill be placed side by side uponone end of the typecylinder, and those for printing the second and thirdpages-that is to say, the other side of the sheetwill be placed upon theother end of the cylinder, the heads of the columns of all the formsbeing at the center of the cylinder. If, as illustrated in Fig. 11, asupplement for an eight-page paper is to be produced, the forms forprinting pages 9 12 will be upon one end of the cylinder and the formsforpages 10 11 upon the other. Adoublewidth web will then be led fromthe roll 7, and in passing over cylinders 9 and 11 will receivetwoimpressions, as a b,- but, there being no forms upon the opposite sideof the type-cylinder, the spaces ad will be left blank, after whichblank spaces will follow impressions e f, made by the forms at the nextrevolution of the type-cylinder. The web, after passing cylinder 11,will be turned, and in passing cylinders 16 and 22 will receive the sameimpressions upon its opposite side. The turning of the web, as will bereadily understood, will cause pages 9 12 to be printed opposite topages 10 11, and vice versa. After leaving cylinder 22 the Web will beled around rolls 94 and 95 to cylinders 73 and 74, where the spaces leftblank in passing cylinders 16 and 22 will be printed,after which it isagain turned and led to cylinders 75 and 76, where the spaces 0 d leftblank in passing cylinders 9 and 11 will receive impressions, which willcomplete the printing of the web. The web thus printed will be splitupon the line uubyaslitter, as 300, located at any convenient point, andthen severed upon the lines to w by the cutting-cylinders, after whichthe sheets will be associated and delivered in the manner alreadydescribed.

.By reference to Fig. 11 it will be observed that when a double-widthweb is perfected in this manner and then split longitudinally into twosections the sections are duplicates as to printed matter, but that thepages upon the under sideof one section are upon the upper side of theother, and vice versa, and also that each section contains a series ofcomplete sheets or products, all the sheets of each section having thesame pages uppermost. It-will also be observed that by this meansfourpage papers or products can be produced from a single double-widthweb without duplicating the forms and with the same rapidity that theycan be produced from two webs upon asingle-width machine operated at thesame speed. When this product is being produced, twopairs or lots ofassociated sheets will of course pass side by side to each of the flies,and the sheets will be laid in two side-by-side piles upon the tables;but all the sheets of each pile will have the same pages uppermost, sothat no confusion will be occasioned.

What I claim is 1. The combination, with the type or form cylinder 5and'impression-cylinders, and a web-turner arranged to co-operatetherewith to print both sides of a web from the same forms, of amechanism for severing the web into sheets and a collecting mechanismar- ICO ranged to associate the sheets into lots, each of which lotsshall contain sheets upon which the pages are printed in like order, allsubstantially as described.

2. The combination, with the type or form cylinder 5 andimpression-cylinders, and a web-turner arranged to co-operate therewithto print both sides of a web from the same forms, of a mechanism forsevering the web into sheets, a collecting mechanism arranged toassociate the sheets into lots, each of which lots shall contain sheetsupon which the pages are printed in like order, and means for directingthe diffferent lots to separate piling mechanisms, all substantially asdescribed.

3. The combination, with a web-printing mechanism in which the same formmakes a plurality of impressions upon the same side of the web at eachrevolution of the type or form cylinder, of a web-severing mechanism, amechanism for associating like sheets together, and means for directingthe lots of associated sheets into different pathways, all substantiallyas described.

- 4. The combination, with a web-printing mechanism in which the sameform makes a plurality of impressions upon the same side of the web ateach revolution of the type or form cylinder, of a web-severi ngmechanism,a mechanism for associating like sheets together, means fordirecting the lots of associated sheets into different pathways, and twopiling mechanisms for piling the sheets emerging from the differentpathways, all substantially as described.

5. The combination, with the type or form cylinder 5, two sets ofimprcssioncylinders, each set consisting of a plurality of cylinders, aweb-turner, and suitable register-rolls, as 10 and 21, of a web-severingmechanism and a collecting mechanism arranged to associate the sheetsinto lots, each of which lots shall contain sheets upon which the pagesare printed in like order, all substantially as described.

6. The combination of the type or form cylinder carrying the forms forprinting both sides of a web, with sheets which occupy only half thewidth of the web, the forms for printing the pages on one side of thesheet being placed at one end of the cylinder and those for printing thepages on the other side of the sheet at the other end of the cylinder,with the heads of their columns pointing in the opposite direction,impressioil-cylinders and webturning mechanism arranged to co operatewith said form-cylinder to print both sides of the web from said forms,and mechanism for slitting the web longitudinally into two seotions andfor severing said sections transversely into sheets, whereby there areproduced from a single wide web duplicate side by-side streams ofpapers, all substantially as described.

7. The combination of the type'or form cylinder 5, carrying the formsfor printing both sides of a web, with sheets which occupy only one halfthe width of the web, said forms being arranged in a single group, withthose for printing the pages on one side of a sheet at one end of thecylinder and those for printing pages on the other side of the sheet atthe other end of the cylinder, with the heads of their columns pointingin the opposite direction, impression-cylinders and web-turningmechanism arranged to cooperate with said form-cylinder to print bothsides of the web from said forms, and mechanism for slitting the weblongitudinally into two sections and for severing said sectionstransversely into sheets, whereby there are produced from asingle wideweb duplicate sidc-byside streams of papers, all substantially asdescribed.

8. The combination, with the type or form cylinder 5 and the four setsof impression-cylinders and cooperating registerrolls and webturners, ofguiderolls, as 94: and 95, substantially as described.

9. In a web-printing mechanism, a threading-tape located just outside ofeach edge of the web and following its course through the machine,substantially as described.

10. The combination, with the type or form cylinder 5, provided with cooperating in1 pression-cylinders and web'turners, by which it iscapaeitated to sim ultaneonsl y perfect two webs from the same forms, ofleading-rolls which are so arranged that when one of said webs isomitted the other can be led to and operated upon by all of saidimpression-cylinders and web-turners, all substantially as described.

In testimony whereof I havehereunto set my hand in the presence of twosubscribing witncsses.

STEPHEN D. TUCKER. Witnesses:

Cults. \V. CARPENTER, ALBERT S. BURLINGTIAM.

